ML20079S352

Interim Deficiency Rept Re Westinghouse 7300 Process Protection Sys Nlp Card Heat Sinks & Ntc Card Relays. Initially Reported on 830216.Heat Sinks Will Be Replaced W/ New Style Sink & Replacement Relay Developed

ML20079S352
Person / Time
Site:	Seabrook
Issue date:	01/04/1984
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO.
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
SBN-606, NUDOCS 8402030305
Download: ML20079S352 (3)

Text

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.r c PUEBLIC SERVICE SEA M M STA N

.w A omc Ccmnpanyof New Hempehere

• 1671 Worcester Rood Fromingham, Massachusetts 01701 (617) - 872 - 8100 Jar.uary 4, 1984 SBN- 606 T.F. Q2.2.2 United States Nuclear Regulatory Commission Region I 631 Park Avenue 7.ing of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) Telecen of February. 16, 1983, A. L. Legendre (YAEC) to J. Wiggins (NRC, Region I)

(c) PSNH Letter, dated March 18,1983, " Interim 10CFR50.35(e)

Report; Westinghouse 7300 Series Process I&C System Cabinets", J. DeVincentis to R. W. Starostecki (d) PSNH Letter, dated May 20, 1983, " Interim 10CFR50.55(e)

Report; Westinghouse 7300 Series Process 1&C System Cabinets", J. DeVincentis to R. W. Starostecki (e) Telecon of June 17, 1983, A. L. Legendre (YAEC) to Eugene Kelly (NRC, Region I)

(f) Westinghouse Letter, dated June 1,1983, E. P. Rahe to R. C. DeYoung j (g) PSNH Letter, dated July 1,1983, J. DeVincentis to l R. W. Starostecki

Subject:

Interim 10CFR50.55(e) Report; Vestinghouse 7300 Process Protection System NLP Card Heat Sinks and NTC Card Relays

Dear Sir:

We have further reviewed the two 10CFR50.55(e) deficiencies af fecting the Westinghouse 7300 Series Process Protection System and have determined these i to be reportable.

, Reference (g) describes the deficiencies in detail. The following

( corrective actions will be taken.

l 8402030305 840104 PDR ADOCK C5000443 S d PDR A

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. United' States Nuclear Regulatory Commission January 4, 1984 Attention: R. W. Starostecki, Director Pagc 2

1. Heat Sinks

-All affected heat sinks will be replaced with a new style heat sink which will correct the problem. The new style heat sink is secured to the printed circuit board using screws and shoulder washers.

This will replace the present method _of securing the heat sink to the printed circuit board by relying on an adhesive bond.

2. . Mercury Relays A replacement relay is being developed and tested by Westinghouse.

These replacement relays will be installed in all NTC cards at Seabrook subsequent to development and testings.

We'will continue to follow both of these items and notify you when the replacement is complete.

Very truly yours, YANKEE TOMIC ELECTRIC C011PANY Os J. DeVincentis Project Manager cc: Atomic Safety and Licensing Board Service List Director, Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 r

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iWilliam S." Jordan,-III, Esquire Brentwood Board of Selectmen

.Harmon 4 Weiss ~ . .

RED Dalton Road 1725 I Street, N.W. Suite-506 - Brentwood, New Hampshire.03833

Washington;

DC-20006

.Roy-P. Lessy,~Jr., Esquire. .

Office'of the Executive-Legal Director Edward F. Meany JU.S._ Nuclear,hegulatory Commission. Designated Representative of Washington, DC 20555. the Town of Rye

_ 155 Washington Road Robert.A. Backus, Esquire LRye, NH 03870' 116 Lowell~ Street P.O. Box 516 Calvin A. Canney Mancehster, NH 03105 City Manager.

City Hall-Philip Ahrens,.. Esquire 126 Daniel Street

.' Assistant Attorney General 'Portsmocth, NH 03801

Department-of the Attorney General Augusta, ME 04333' Dana Bisbee, Esquire Assistant Attorney General Mr. John B. Tanzer ~ Office of the Attorney General '

. Designated Representative-of 208 State House Annex the; Town of Hampton. Concord, NH 03842 T5 Morningside Drive Hampton,:NH 03842 Anne Verge, Chairperson

. Board of Selectmen Roberta C. Pevear Town Hall Designated Representative of- South Hampton, NH 03842 the Town of Hampton Falls Drinkwater Road - Patrick J. McKeon

'Hampton Falls, NH 038441 Selectmen's Office 10 Central' Road Mrs.. Sandra Cavutis Rye, NH 03870 s Designated Representative of'

'the' Town of Kensington Carole F. Kagan, Esq.

RFD 1 . Atomic Safety and Licensing Board Panel East Kingston, NH 03827 U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire Assistant: Attorney General Mr. Angie Machiros

. Environmental Protection Bureau Chairman of the Board of Selectmen Department of the Attorney General Town of Newbury

'One A9hburton Place, 19th Floor Newbury, MA 01950 Boston, MA'02108 Town Manager's Office Senator-Gordon J. Humphrey Town Hall - Friend Street

- U.S. Senate Amesbury, Ma. 01913 Washington, DC 20510 (Attn: Tom Burack) Senator Gordon J. Humphrey 1 Pillsbury Street Diana P. Randall Concord, NH 03301 70 Collins Street . (Attn: Herb Boynton)

SEabrook, 121 03874 Richard E. Sullivan, Mayor Donald E. Chick City Hall l

Town Manager Newburyport, MA 01950

l. Town of Exeter l 10 Front Street Exeter, NH 03833 I '.

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